Microembolus Signal using Trancranial Doppler Ultrasound (TCD)

In monitoring system using Transcranial Doppler (TCD) ultrasound in stroke detection, the occurence of microembolus can happen at different branch of arteries, i.e. middle cerebral artery (MCA), internal cerebral artery (ICA) and posterior cerebral artery (PCA). Microembolus event that can be observed through the audible sound of ‘chirp’, ‘moan’ or ‘click’ is the risk factor that cause blockage in the blood vessel. The TCD signals collected are presented here.在用于脑卒中检测的经颅多普勒（Transcranial Doppler, TCD）超声监测系统中，微栓子（microembolus）可出现于不同的动脉分支，即大脑中动脉（middle cerebral artery, MCA）、大脑内动脉（internal cerebral artery, ICA）与大脑后动脉（posterior cerebral artery, PCA）。可通过“啾鸣音（chirp）”“呻吟音（moan）”或“咔嗒音（click）”这类可听音频特征观测到的微栓子事件，是引发血管阻塞的风险因素。本次提供的数据集包含采集得到的TCD信号。